Different Types of Slide Gate Valves

Slide gate valves are simple equipment used in various gravity feed applications like discharge of dust from dust collectors or discharge of bulk solids material from storage equipment like silo, hoppers or bins. They are also used at the bottom of conveying equipment like drag chain conveyors and screw conveyors. Generally they are used with conveying equipment where multiple discharge points are required. Continuous and reliable operation of slide gate valves are important. The design should be robust and should be able to withstand the load.

Slide gate valve can come in round, square and rectangular flanged construction. As far as actuation is concerned there are three types of slide gate valves

Manual slide gate valves

Manual slide gate valves comprise of following components

1. Body or frame
2. Rollers
3. Slide plate
4. Nut and screw mechanism
5. Chain wheel or hand wheel

Pneumatic slide gate valve

Pneumatic slide gate valve comprise of following components

1.  Body or frame
2. Rollers
3. Slide plate
4. Pneumatic Cylinder (with fork and pin attachments)
5. Solenoid valve
6. Air Filter, regulator, lubricator
7. Limit switch

Motorized slide gate valves

1. Body or frame
2. Rollers
3. Slide plate
4. Electric actuator OR geared brake motor or motor and gearbox
5. Limit switch